Servo Double Drum Winch 2 Ton Motor 5kW | KLD

A 2000 kg double drum winch in which both drums are driven from the two output shafts of one S-series reducer at 127.68:1. Because a single servo motor turns both drums through the same gear train, the two ropes cannot drift apart — synchronisation is mechanical, not a control loop. Drum speed is 11 rpm at an output torque of 2794 N.m, giving a rope speed of 10 m/min over a 28 m travel. Each drum carries 31 m of Ø10 mm rope, with a maximum rope spacing of 1088 mm. Grooved drums with rope guides, mechanical height limiter, and control that can be tied into a PLC system. Machine weight is 420 kg excluding the motor.

Quick Specs

Rated lifting capacity: 2000 kg total (about 1000 kg per rope)
Motor: servo with brake, 5 kW, 380 V, 50 Hz — customer-supplied per drawing
Reducer: S series, ratio 127.68:1
Reducer output speed: 11 rpm

Application Scenarios and Applicable Boundaries

- Two-point lifting where the two ropes must stay level with each other — the mechanical arrangement keeps them in step without a synchronisation controller
- Hoisting a long or wide assembly that needs support at two points rather than one
- Applications requiring a defined travel of up to 28 m
- Installations where the winch is one axis in a PLC-controlled process
- Duties where the customer already specifies or supplies the servo motor and drive
- Narrow mounting situations: the machine is only 360 mm wide across the frame, with the drums running along the length

Features Benefits

The arrangement is the point of this machine. One reducer sits at the centre of the frame with an output shaft on each side, and a drum is mounted on each shaft. Both drums are therefore turned by the same gear train from the same motor. There is no second motor, no second drive and no cross-shaft controller: the two drums cannot get out of step because nothing can make them turn at different rates.
Both drums are grooved and each carries a rope guide. The grooves keep successive wraps side by side, and the guide holds the rope in line with the groove as it comes off the drum. On a double-drum machine the guides matter more than on a single drum: if one rope wanders, its effective radius changes and that drum starts paying out at a different speed from its partner.
A mechanical height limiter is fitted to set the travel ends. Being mechanical, it acts independently of the PLC program and of the servo position loop, so a software fault or an encoder loss does not remove the end stop.

Complete Technical Specifications

Size Installation and System Interface

1. 2000 kg is the sum of the two rope pulls. Check the supporting structure for the combined 2000 kg pull plus the machine's own 420 kg — and add the motor, which is not included in that 420 kg.
2. The two ropes must run parallel and be spaced within 1088 mm. A wider spread changes the load path into the bearing supports, which are only rated for the arrangement shown.
3. Mount so both drums are horizontal and their axes level. A drum that sits out of level will let the rope migrate to one side regardless of the guide.
4. Finish the motor and servo drive fit before installation: the motor is customer-supplied, and the transition flange interface dimensions are not on the drawing (see 6.2). Get them before fabrication.

Control Safety and Protection

Drive: 5 kW servo motor with brake, 380 V 50 Hz, through an S-series reducer at 127.68:1. Drum speed 11 rpm; rope speed 10 m/min.
Synchronisation: mechanical — both drums driven from the two output shafts of the one reducer. No second motor, no second drive, no synchronisation controller.
End of travel: mechanical height limiter, standard.
Programming: control can be integrated into a PLC system; working modes configured in the controller.
Rope laying: grooved drums with rope guides on both sides.

Customization Options and Engineering Process

Configured around your operating conditions — Share the required line pull, rope travel, operating speed, duty cycle, power supply, installation envelope and environment. KLD will review the application and provide a proposed configuration, technical drawing and quotation for approval. Free design schematics are provided for different scenarios.

Requirements → Concept → Drawing & Quotation → Approval → Production & Test → Delivery

Standards Testing and Quality

The company operates an ISO 9001 quality management system. CE conformity documents (LVD, EMC) are available for applicable configurations on request. Classification certificates (e.g. LRS / BV / ABS / DNV GL) can be arranged as an optional item for marine applications.

Factory testing follows the approved technical specification for each configured unit and may include: no-load run, rated-load operation, brake function, limiter function and control verification. Available documentation may include dimensional drawings, electrical diagrams, inspection records and functional test results, depending on project scope.

Engineering Cases

a two-point lifting duty in a research-institute setting, where an assembly had to be raised at both ends and kept level throughout a 28 m travel, and where the winch had to be integrated into an existing PLC-controlled sequence.
Configuration supplied: TH2408.00 servo double drum winch. One 5 kW servo motor with brake through a single S-series reducer at 127.68:1, driving one drum on each output shaft. Output 11 rpm and 2794 N.m; rope speed 10 m/min; travel 28 m. Two Ø10 mm ropes, 31 m per drum, maximum spacing 1088 mm. Grooved drums with rope guides on both sides; mechanical height limiter. Machine weight 420 kg excluding motor.
Why this configuration: level lifting at two points was the governing requirement, and driving both drums from one reducer makes the two drums mechanically inseparable — there is no second drive that could lose step. A single motor also means a single enable and a single fault path for the PLC to supervise. The narrow 360 mm frame allowed the unit to sit where a wider winch would not.

Technical Data Download

Downloads:
- Product Datasheet (PDF)
- General Arrangement Drawing (PDF)
- Installation & Operation Manual (PDF)
- Request CAD / Electrical Drawing

Delivery Packaging and Lifecycle Support

Most winches are custom-made products; lead time is confirmed after technical approval and order review. Project support can include configuration review, drawing approval, factory testing, export packaging, remote commissioning support and recommended spare parts. On-site measurement and installation support are available for applicable projects.